1011203345 has 16 divisors (see below), whose sum is σ = 1220426688. Its totient is φ = 804323520.

The previous prime is 1011203341. The next prime is 1011203357. The reversal of 1011203345 is 5433021101.

1011203345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011203345 - 2² = 1011203341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1011203341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904727 + ... + 905843.

It is an arithmetic number, because the mean of its divisors is an integer number (76276668).

Almost surely, 2^1011203345 is an apocalyptic number.

It is an amenable number.

1011203345 is a deficient number, since it is larger than the sum of its proper divisors (209223343).

1011203345 is a wasteful number, since it uses less digits than its factorization.

1011203345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1011203345 is about 31799.4236582992. The cubic root of 1011203345 is about 1003.7205883876.

Adding to 1011203345 its reverse (5433021101), we get a palindrome (6444224446).

The spelling of 1011203345 in words is "one billion, eleven million, two hundred three thousand, three hundred forty-five".